cargo-mcp

use crate::state::CargoTools; use crate::tools::cargo_utils::{create_cargo_command, execute_cargo_command}; use anyhow::Result; use mcplease::{ traits::{Tool, WithExamples}, types::Example, }; use serde::{Deserialize, Serialize}; use std::collections::HashMap; /// Run cargo clippy for linting suggestions #[derive(Debug, Serialize, Deserialize, schemars::JsonSchema, clap::Args)] #[serde(rename = "cargo_clippy")] pub struct CargoClippy { /// Optional package name to lint (for workspaces) #[serde(skip_serializing_if = "Option::is_none")] #[arg(long)] pub package: Option<String>, /// Optional Rust toolchain to use (e.g., 'stable', 'nightly', '1.70.0') #[serde(skip_serializing_if = "Option::is_none")] #[arg(long)] pub toolchain: Option<String>, /// Apply suggested fixes automatically #[serde(skip_serializing_if = "Option::is_none")] #[arg(long)] pub fix: Option<bool>, /// Optional environment variables to set for the cargo command #[serde(skip_serializing_if = "Option::is_none")] #[arg(skip)] pub cargo_env: Option<HashMap<String, String>>, } impl WithExamples for CargoClippy { fn examples() -> Vec<Example<Self>> { vec![ Example { description: "Basic cargo clippy in current project", item: Self { package: None, toolchain: None, fix: None, cargo_env: None, }, }, Example { description: "Run clippy on a specific package", item: Self { package: Some("my-lib".into()), toolchain: None, fix: None, cargo_env: None, }, }, Example { description: "Run clippy with automatic fixes", item: Self { package: None, toolchain: None, fix: Some(true), cargo_env: None, }, }, Example { description: "Run clippy with nightly toolchain", item: Self { package: None, toolchain: Some("nightly".into()), fix: None, cargo_env: None, }, }, ] } } impl Tool<CargoTools> for CargoClippy { fn execute(self, state: &mut CargoTools) -> Result<String> { let project_path = state.ensure_rust_project(None)?; // Use toolchain from args, session default, or none let toolchain = self.toolchain .or_else(|| state.get_default_toolchain(None).unwrap_or(None)); let mut args = vec!["clippy"]; if let Some(ref package) = self.package { args.extend_from_slice(&["--package", package]); } if self.fix.unwrap_or(false) { args.push("--fix"); } // Add clippy arguments args.extend_from_slice(&["--", "-D", "warnings"]); let cmd = create_cargo_command(&args, toolchain.as_deref(), self.cargo_env.as_ref()); execute_cargo_command(cmd, &project_path, "cargo clippy") } }